Humidity

ian103

The house we now in seems to have a high humidity, when we had all the wet weather it was nearly 80%, yesterday with all the sun it dropped to low 40%s and this morning its back to mid 60%s. Does anyone know why it would be so variable? Sometimes the house feels a little damp but we put a dehumidifier on and an hour later its OK again

Southend1

ian103 wrote: »

The house we now in seems to have a high humidity, when we had all the wet weather it was nearly 80%, yesterday with all the sun it dropped to low 40%s and this morning its back to mid 60%s. Does anyone know why it would be so variable? Sometimes the house feels a little damp but we put a dehumidifier on and an hour later its OK again

Mine varies between about 40-60% depending on the weather. Just make sure roof, gutters etc are all in good order and that you open windows daily to let air circulate to avoid problems. Also look at lifestyle e.g. Do you dry clothes indoors, cook with windows closed etc

ian103

I have cleaned the gutter out, the roof all appears nice and dry inside. I was just surprised at the rapid fluctuations. I know I need to sort the ventilation in the spare room, it needs a vent in the wall as the windows are the old style upvc with no trickle vents but we open the windows every day to get a flow of air, I suspect the other issue is that we are both generally in most days so more moisture.

anotherbaldrick

The moisture saturation of the air outside will greatly effect the humidity inside the building. If the weather outside is sodden, been raining for days wind from the atlantic and even worse is fairly warm, the moisture will rise to dew point and everything including the inside of the house will feel damp . Next day wind is from the SW dry air from the Sahara, the clouds lift and the air moisture content will drop to 20% , so will the inside of your house . A house is not airtight , usually you will get between 0.25 to 2.5 air changes per hour depending how draught proof you are.

cyclonebri1

It's because you are in Cornwall, never stops bloody raining when I'm there




But seriously that doesn't sound too far of the mark to be honest.

Feeling damp is another matter, you need to investigate a little further checking walls and floors and also the roof space.;)
But seriously again, we have had an awful lot of rain recently, you won't get the reading you would in a normal summer.
I know people who have the coal fires going in July:eek::eek:

noelphobic

How do you measure humidity? Is there some kind of meter you could buy for this purpose? I have had problems with damp that I am addressing. I also try to have the kitchen and bathroom windows open as much as possible when I am home and put a dehumidifier on when I go out. It would be handy to know what the levels are though.

ian103

yes we brought a meter from amazon cost about £5, expresses the humidy as a percentage, we just thought our barometer was broken - its actually about right.

noelphobic

I've just ordered one from Amazon. The delivery information said 'standard delivery, 7-23 days'! I hope the 23 is a misprint!

cyclonebri1

If it is a problem then you should have paid express delivery? That's always an option.

Of course a seller will protect themselves, with cheap delivery the moment it's posted it is out of their control.

Luckily 90 odd % of items get through quickly

noelphobic

cyclonebri1 wrote: »

If it is a problem then you should have paid express delivery? That's always an option.

Of course a seller will protect themselves, with cheap delivery the moment it's posted it is out of their control.

Luckily 90 odd % of items get through quickly

no, it's not urgent, although hopefully it won't take 23 days! I was just surprised because I've never seen such a long 'window' quoted.

cyclonebri1

It's getting more prominent, more so on ebay to be honest, recent high increases by the PO mean there's a much greater difference in cost between 1st and 2nd class, oh and I didn't mean you should have paid express, I meant you could have ;), no offence.